literal or span

<p>How are you? <span id = "good" runat="server" visible = "false"> I am good </span>
<span id =  "bad" runat="server" visible = "false"> I am not good </span> </p>

According to some condition check at .aspx.cs page i.e
if(a>b) 
{ good.visible = true; }
else
{ bad.visible = true;}

 
Using span just solves my purpose but I doubt if this a right way. I can also use <asp:Literal> control for this. Which is a better approach using literal control or span

 
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